SSRP_YERPE
ID SSRP_YERPE Reviewed; 160 AA.
AC Q8ZH14; Q0WHU4;
DT 02-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 25-MAY-2022, entry version 125.
DE RecName: Full=SsrA-binding protein {ECO:0000255|HAMAP-Rule:MF_00023};
DE AltName: Full=Small protein B {ECO:0000255|HAMAP-Rule:MF_00023};
GN Name=smpB {ECO:0000255|HAMAP-Rule:MF_00023};
GN OrderedLocusNames=YPO1101, y3079, YP_1055;
OS Yersinia pestis.
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Yersiniaceae; Yersinia.
OX NCBI_TaxID=632;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CO-92 / Biovar Orientalis;
RX PubMed=11586360; DOI=10.1038/35097083;
RA Parkhill J., Wren B.W., Thomson N.R., Titball R.W., Holden M.T.G.,
RA Prentice M.B., Sebaihia M., James K.D., Churcher C.M., Mungall K.L.,
RA Baker S., Basham D., Bentley S.D., Brooks K., Cerdeno-Tarraga A.-M.,
RA Chillingworth T., Cronin A., Davies R.M., Davis P., Dougan G., Feltwell T.,
RA Hamlin N., Holroyd S., Jagels K., Karlyshev A.V., Leather S., Moule S.,
RA Oyston P.C.F., Quail M.A., Rutherford K.M., Simmonds M., Skelton J.,
RA Stevens K., Whitehead S., Barrell B.G.;
RT "Genome sequence of Yersinia pestis, the causative agent of plague.";
RL Nature 413:523-527(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KIM10+ / Biovar Mediaevalis;
RX PubMed=12142430; DOI=10.1128/jb.184.16.4601-4611.2002;
RA Deng W., Burland V., Plunkett G. III, Boutin A., Mayhew G.F., Liss P.,
RA Perna N.T., Rose D.J., Mau B., Zhou S., Schwartz D.C., Fetherston J.D.,
RA Lindler L.E., Brubaker R.R., Plano G.V., Straley S.C., McDonough K.A.,
RA Nilles M.L., Matson J.S., Blattner F.R., Perry R.D.;
RT "Genome sequence of Yersinia pestis KIM.";
RL J. Bacteriol. 184:4601-4611(2002).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=91001 / Biovar Mediaevalis;
RX PubMed=15368893; DOI=10.1093/dnares/11.3.179;
RA Song Y., Tong Z., Wang J., Wang L., Guo Z., Han Y., Zhang J., Pei D.,
RA Zhou D., Qin H., Pang X., Han Y., Zhai J., Li M., Cui B., Qi Z., Jin L.,
RA Dai R., Chen F., Li S., Ye C., Du Z., Lin W., Wang J., Yu J., Yang H.,
RA Wang J., Huang P., Yang R.;
RT "Complete genome sequence of Yersinia pestis strain 91001, an isolate
RT avirulent to humans.";
RL DNA Res. 11:179-197(2004).
CC -!- FUNCTION: Required for rescue of stalled ribosomes mediated by trans-
CC translation. Binds to transfer-messenger RNA (tmRNA), required for
CC stable association of tmRNA with ribosomes. tmRNA and SmpB together
CC mimic tRNA shape, replacing the anticodon stem-loop with SmpB. tmRNA is
CC encoded by the ssrA gene; the 2 termini fold to resemble tRNA(Ala) and
CC it encodes a 'tag peptide', a short internal open reading frame. During
CC trans-translation Ala-aminoacylated tmRNA acts like a tRNA, entering
CC the A-site of stalled ribosomes, displacing the stalled mRNA. The
CC ribosome then switches to translate the ORF on the tmRNA; the nascent
CC peptide is terminated with the 'tag peptide' encoded by the tmRNA and
CC targeted for degradation. The ribosome is freed to recommence
CC translation, which seems to be the essential function of trans-
CC translation. {ECO:0000255|HAMAP-Rule:MF_00023}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00023}.
CC Note=The tmRNA-SmpB complex associates with stalled 70S ribosomes.
CC {ECO:0000255|HAMAP-Rule:MF_00023}.
CC -!- SIMILARITY: Belongs to the SmpB family. {ECO:0000255|HAMAP-
CC Rule:MF_00023}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAM86629.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
CC Sequence=AAS61305.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; AL590842; CAL19767.1; -; Genomic_DNA.
DR EMBL; AE009952; AAM86629.1; ALT_INIT; Genomic_DNA.
DR EMBL; AE017042; AAS61305.1; ALT_INIT; Genomic_DNA.
DR PIR; AE0135; AE0135.
DR RefSeq; WP_002210714.1; NZ_WUCM01000016.1.
DR RefSeq; YP_002346144.1; NC_003143.1.
DR AlphaFoldDB; Q8ZH14; -.
DR SMR; Q8ZH14; -.
DR STRING; 214092.YPO1101; -.
DR PaxDb; Q8ZH14; -.
DR DNASU; 1148026; -.
DR EnsemblBacteria; AAM86629; AAM86629; y3079.
DR EnsemblBacteria; AAS61305; AAS61305; YP_1055.
DR GeneID; 66842435; -.
DR KEGG; ype:YPO1101; -.
DR KEGG; ypk:y3079; -.
DR KEGG; ypm:YP_1055; -.
DR PATRIC; fig|214092.21.peg.1393; -.
DR eggNOG; COG0691; Bacteria.
DR HOGENOM; CLU_108953_3_0_6; -.
DR Proteomes; UP000000815; Chromosome.
DR Proteomes; UP000001019; Chromosome.
DR Proteomes; UP000002490; Chromosome.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0003723; F:RNA binding; IBA:GO_Central.
DR GO; GO:0070929; P:trans-translation; IEA:UniProtKB-UniRule.
DR GO; GO:0070930; P:trans-translation-dependent protein tagging; IBA:GO_Central.
DR CDD; cd09294; SmpB; 1.
DR Gene3D; 2.40.280.10; -; 1.
DR HAMAP; MF_00023; SmpB; 1.
DR InterPro; IPR023620; SmpB.
DR InterPro; IPR000037; SsrA-bd_prot.
DR InterPro; IPR020081; SsrA-bd_prot_CS.
DR PANTHER; PTHR30308; PTHR30308; 1.
DR Pfam; PF01668; SmpB; 1.
DR SUPFAM; SSF74982; SSF74982; 1.
DR TIGRFAMs; TIGR00086; smpB; 1.
DR PROSITE; PS01317; SSRP; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Reference proteome; RNA-binding.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000250"
FT CHAIN 2..160
FT /note="SsrA-binding protein"
FT /id="PRO_0000103076"
SQ SEQUENCE 160 AA; 18407 MW; 9417C8DCDCE1AFDE CRC64;
MTKKKAYKPG SATIAQNKRA RHEYFIEEEF EAGLALQGWE VKSLRAGKAN ISDSYVMFKN
GEAFLFGATI TPLNVASTHV VCEPMRTRKL LLNKRELDSL FGRVNREGYT VVALSMYWKN
AWVKVKIGVA KGKKDNDKRD DIRDREWKLD KARIMKHANR
